license('test', ' ... ') gives 1 even if the license exists but it is not...

license('test', ' ... ') gives 1 even if the license exists but it is not active, implying a crash of the dynare matlab session.

(partial cherry pick from commit ed9e9560b04b109d715b0835c8f2f68103c466bf)

matlab/dynare_config.m

@@ -52,7 +52,7 @@ if ~exist('OCTAVE_VERSION')
     addpath([dynareroot '/missing/rows_columns'])
     % Replacement for vec() (inexistent under MATLAB)
     addpath([dynareroot '/missing/vec'])
-    if ~license('test', 'statistics_toolbox')
+    if isempty(license('inuse','statistics_toolbox'))
         % Replacements for functions of the stats toolbox
         addpath([dynareroot '/missing/stats/'])
     end

matlab/dynare_solve.m

@@ -38,7 +38,7 @@ global options_
 options_ = set_default_option(options_,'solve_algo',2);
 info = 0;
 if options_.solve_algo == 0
-    if ~exist('OCTAVE_VERSION') && ~license('test', 'optimization_toolbox')
+    if ~exist('OCTAVE_VERSION') && isempty(license('inuse','optimization_toolbox'))
         error('You can''t use solve_algo=0 since you don''t have MATLAB''s Optimization Toolbox')
     end
     options=optimset('fsolve');